[Sirrotica]

Originally Posted by track73

Grumpy Jenkins used the nylon gears in his real fast Chevies. He said the cam would slightiy retard at high RPM.

Funny thing is that at that time here was a couple companies called Varicam and also Cam A Go, that built timing sets that would advance and retard camshaft timing based on how you set the thing up and at what RPMs you wanted the timing to change. Just throwing that out there that he could have used that setup., but I'm sure he had his reasons.

Of course the newest technology is able to advance and retard cam timing with use of hydraulics electronically controlled by the ECM.

[Formulajones]

Originally Posted by Sirrotica

Of course the newest technology is able to advance and retard cam timing with use of hydraulics electronically controlled by the ECM.

Can do it on older engines too with an ignition system and timing retard feature

[track73]

I used a Cam Correct timing system on a stock car engine I built back in 2003. Cam Correct was designed to control variable valve timing. . Basic kit includes a tracking shoe, a spring loaded shoe, drill fixture, hardware and sealer. Drilling and tapping of block required. It must have worked in conjunction with the other parts used. The car had 5 of the top ten qualifying times. Too bad the driver wasn't up to the motor.

[Formulajones]

Originally Posted by track73

I used a Cam Correct timing system on a stock car engine I built back in 2003. Cam Correct was designed to control variable valve timing. . Basic kit includes a tracking shoe, a spring loaded shoe, drill fixture, hardware and sealer. Drilling and tapping of block required. It must have worked in conjunction with the other parts used. The car had 5 of the top ten qualifying times. Too bad the driver wasn't up to the motor.

That sounds pretty cool.

[Poncho60]

Anyone have a picture of an intact NYLON cam gear that they could post? Thx in advance for any inputs.

[shaker455]

Originally Posted by Poncho60

Anyone have a picture of an intact NYLON cam gear that they could post? Thx in advance for any inputs.

I might once I pull off my fuel pump and look in there!